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RLC20KR680FTP Equivalent & Substitute Parts
Part Overview
The RLC20KR680FTP is a 680 mOhms ±1% thick film chip resistor manufactured by Kamaya Inc. in the 0805 (2012 Metric) package format. This component is rated for 0.333W (1/3W) power dissipation and is designed for automotive applications with AEC-Q200 qualification. The part operates across a temperature range of -55°C to 155°C and is RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1).
Substitute parts are identified when equivalent electrical specifications and mechanical compatibility exist, enabling component selection flexibility across qualified manufacturers while maintaining circuit performance and reliability requirements.
Substiute Parts
Key Parameters
| Parameter | Value | Specification Type |
|---|---|---|
| Resistance | 680 mOhms | Electrical |
| Tolerance | ±1% | Electrical |
| Power Rating | 0.333W (1/3W) | Electrical |
| Package / Case | 0805 (2012 Metric) | Mechanical |
| Composition | Thick Film | Material |
| Automotive Qualification | AEC-Q200 | Compliance |
| Operating Temperature Range | -55°C to 155°C | Environmental |
| RoHS Status | ROHS3 Compliant | Compliance |
Substitute Part Grouping Explanation
Substitution eligibility for the RLC20KR680FTP is determined by the following critical parameters:
Electrical Compatibility Requirements:
- Resistance value: 680 mOhms
- Tolerance: ±1%
- Composition: Thick Film
Mechanical Compatibility Requirements:
- Package format: 0805 (2012 Metric)
- Physical dimensions: 0.079" L x 0.049" W (2.00mm x 1.25mm)
- Height - Seated (Max): 0.028" (0.70mm)
- Number of terminations: 2
Compliance & Environmental Requirements:
- Automotive qualification: AEC-Q200
- Operating temperature range: -55°C to 155°C
- RoHS3 compliance
- Moisture sensitivity level: 1 (Unlimited)
The ERJ-6RQFR68V from Panasonic Electronic Components meets all mechanical, electrical, and compliance requirements for direct substitution. The substitute part shares identical resistance, tolerance, package dimensions, and automotive qualification. Differences in power rating and temperature coefficient do not preclude substitution when circuit design parameters accommodate the substitute specifications.
Parameter Comparison
| Parameter | RLC20KR680FTP (Kamaya Inc.) | ERJ-6RQFR68V (Panasonic) | Match Status |
|---|---|---|---|
| Resistance | 680 mOhms | 680 mOhms | Identical |
| Tolerance | ±1% | ±1% | Identical |
| Package / Case | 0805 (2012 Metric) | 0805 (2012 Metric) | Identical |
| Composition | Thick Film | Thick Film | Identical |
| Size / Dimension | 0.079" L x 0.049" W (2.00mm x 1.25mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) | Identical |
| Height - Seated (Max) | 0.028" (0.70mm) | 0.028" (0.70mm) | Identical |
| Automotive Qualification | AEC-Q200 | AEC-Q200 | Identical |
| Operating Temperature Range | -55°C to 155°C | -55°C to 155°C | Identical |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Identical |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | Identical |
| Power Rating | 0.333W (1/3W) | 0.125W (1/8W) | Substitute Lower |
| Temperature Coefficient | ±100ppm/°C | ±250ppm/°C | Substitute Higher |
Engineering Selection Recommendations
The ERJ-6RQFR68V qualifies as a direct substitute for the RLC20KR680FTP based on matching electrical resistance, tolerance, package format, and automotive AEC-Q200 qualification. Both components are RoHS3 compliant with identical moisture sensitivity ratings and operating temperature ranges.
Selection between these parts depends on circuit-specific power dissipation requirements. The RLC20KR680FTP provides 0.333W power rating, while the ERJ-6RQFR68V is rated for 0.125W. Applications requiring power dissipation below 0.125W accommodate either component. Applications requiring power dissipation between 0.125W and 0.333W require the RLC20KR680FTP.
The temperature coefficient difference (±100ppm/°C versus ±250ppm/°C) affects resistance stability across the operating temperature range. Applications with stringent temperature stability requirements benefit from the RLC20KR680FTP specification.
Both components maintain active product status with established supply availability. Component selection follows standard procurement practices based on availability, lead time, and cost considerations within the specified electrical and mechanical constraints.
Frequently Asked Questions (FAQ)
Q: Can the ERJ-6RQFR68V replace the RLC20KR680FTP in all applications?
A: The ERJ-6RQFR68V is mechanically and electrically compatible with identical resistance, tolerance, and package format. Substitution is valid when circuit power dissipation does not exceed 0.125W. Applications requiring power dissipation between 0.125W and 0.333W require the RLC20KR680FTP.
Q: Are there package compatibility concerns between these parts?
A: Both components use the 0805 (2012 Metric) package with identical physical dimensions (0.079" L x 0.049" W) and maximum seated height (0.028"). PCB footprints and assembly processes are directly compatible.
Q: Do both parts meet automotive qualification requirements?
A: Both the RLC20KR680FTP and ERJ-6RQFR68V carry AEC-Q200 automotive qualification. Both are RoHS3 compliant and operate across -55°C to 155°C with unlimited moisture sensitivity rating (MSL 1).
Q: What is the significance of the temperature coefficient difference?
A: The RLC20KR680FTP specifies ±100ppm/°C while the ERJ-6RQFR68V specifies ±250ppm/°C. This affects resistance stability across temperature variations. Applications with tight tolerance requirements across the full operating temperature range benefit from the lower temperature coefficient of the RLC20KR680FTP.
Q: Are these parts available in the same packaging format?
A: Both components are supplied in Tape & Reel (TR) packaging suitable for automated assembly processes. Physical tape and reel specifications follow industry standards for the 0805 package format.
Q: What determines whether a substitute part is acceptable?
A: Substitution eligibility is based on matching resistance value, tolerance, package format, mechanical dimensions, and automotive qualification. Additional considerations include power rating adequacy for the specific circuit application and temperature coefficient requirements for the operating environment.
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